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How Composi-Sleeve™ Works?
The Composi-Sleeve™ anomaly repair solution is a patented pipeline anomaly repair solution that can be completed in quick and easy steps. Composi-Sleeve™ utilizes a military-grade chemical welding process to repair pipeline anomalies (cracks, dents, corrosion, wall loss and leakage).


Composi-Sleeve™ offers more structural support than a Type B Welded Sleeve. With any welded sleeve, it is only attached (fused) to the pipe at the welds on the sleeves, whereas with a Composi-Sleeve ™ the sleeves are 100% attached (fused) to the pipe.

As Stress Engineering Services said in testing, the Composi-Sleeve™ and the pipe "are one" unit (which also applies to insuring cathodic protection). Additionally, "Chemical Welding" is a much more effective bond that distributes stresses and does not affect the grain structure.

Composi-Sleeve™ Installation/Application Process

Prepare both the surfaces of the pipe and the steel sleeve (by sandblasting, steel brush, rough grade sand paper and/or all methods). Then double check how the steel sleeves fit on the pipe.



Apply the chemical welding agent (adhesive) to the steel sleeves with a thick and even coat.





Fit the steel half sleeves (that have the chemical agent applied to them) to the pipe. The steel sleeves remains the core component of the repair. There is NO mechanical hot welding required.



Apply and adjust the patented tension clamps (designed by Western Specialties) to the steel sleeves and pipe. Typically, the clamps will be spaced three to four (3" - 4") apart from one another. The objective is to apply even pressure across the surface of the steel sleeves and pipe.





Once all the clamps are installed on the steel sleeves and pipe, and the appropriate even pressure is applied across the surface, some of the adhesive will begin to ooze out. It is important to collect and smooth out that adhesive along the surface of the pipe at the seams of the steel sleeves.



Allow the adhesive to cure and chemically weld the steel sleeves together. The Composi-Sleeve™ offers more structural support than a Type B Welded Sleeve. With any welded sleeve, it is only attached (fused) to the pipe at the welds on the sleeves, whereas with a Composi-Sleeve ™ the sleeves are 100% attached (fused) to the pipe.

As Stress Engineering Services said in testing, the Composi-Sleeve™ and the pipe "are one" unit (which also applies to insuring cathodic protection). Additionally, "Chemical Welding" is a much more effective bond that distributes stresses and does not affect the grain structure.

The actual cure/chemical welding timeframe is conditional to the individual situation. Typically the curing of the chemical welding process is subject to the environment and ambient temperatures and conditions.



Once the adhesive is allowed to cure and chemically weld the steel sleeves together, then take the clamps off of the steel sleeves and prepare the steel sleeves for the Western Specialties e-glass composite overwrap Ultra-Wrap™.



Prepare both the surfaces of the steel sleeve (by means of a grinder and rough grade sand paper). Then apply the Western Specialties e-glass composite overwrap Ultra-Wrap™ to the steel sleeves with the appropriate number of layers.





Then apply a shrink wrap over the Ultra-Wrap™. Then perforate the shrink wrap to allow the excess adhesive to weep out of the perforation holes. Allow the Ultra-Wrap™ to cure. The actual cure timeframe of Ultra-Wrap™ is conditional to the individual situation. Typically the curing process is subject to the environment and ambient temperatures and conditions.





Once all curing is well in process (subject to the environment and ambient temperatures and conditions) and meets minimal hardness, it is ready for burial.





A Composi-Sleeve™ is installed by a trained and certified installer. Western Specialties is the Composi-Sleeve™ solution creator, developer and manufacturer. The LORD Corporation is the creator, developer, manufacturer and supplier of the chemical welding agents. Primoris Services Corporation, and their family of operating companies, is the trained and certified service agents/applicators of Composi-Sleeve™ pipeline repair system and projects.

Additionally, in some cases Western Specialties and/or other pipeline repair contractor(s) may be used as the certified service agents/applicators of Composi-Sleeve™ pipeline repair system and projects. Generally speaking, each repair situation is dictated by the requirements of the pipeline operator.




Composi-System Overview




Composi-Sleeve Demonstration